公开(公告)号：US20120194088A1

公开(公告)日：2012-08-02

申请号：US13347026

申请日：2012-01-10

申请人： Cheng-Hung Pan

发明人： Cheng-Hung Pan

IPC分类号： H05B37/02

CPC分类号： H05B33/083 ,  H05B33/0809 ,  H05B33/0824

摘要： A high brightness LED driving circuit has a rectifying unit, an LED string, multiple electric switches, a current detection unit and a current adjusting unit. The current adjusting unit turns on and off the electric switches to form a corresponding order current loop. The LED string has multiple LED units. The order of the current loop indicates the number of the LED units being activated. The LED units in each order current loop has the LED units in the previous lower order current loops. In the cycle of voltage-rising period and the voltage-dropping period, the current adjusting unit turns on one electric switch to respectively form a higher and a lower order current loop. Therefore, the brightness of the LED string should be uniform.

摘要翻译： 高亮度LED驱动电路具有整流单元，LED串，多个电开关，电流检测单元和电流调节单元。 电流调节单元打开和关闭电开关以形成相应的顺序电流回路。 LED串具有多个LED单元。 当前循环的顺序表示被激活的LED单元的数量。 LED单元在每个顺序电流环路中具有以前较低阶电流回路中的LED单元。 在升压周期和降压周期中，电流调节单元接通一个电开关，分别形成较高和较低阶电流回路。 因此，LED串的亮度应均匀。

公开(公告)号：US20120146527A1

公开(公告)日：2012-06-14

申请号：US13310948

申请日：2011-12-05

申请人： Cheng-Hung PAN

发明人： Cheng-Hung PAN

IPC分类号： H05B37/02

CPC分类号： H05B33/0809

摘要： An LED driving circuit includes a rectifying unit connected to an AC power, an LED unit, a voltage-controlled transistor, a current detection unit, a low-pass filter and a current control unit. The rectifying unit, the LED unit, the voltage-controlled transistor and the current detection unit are connected in series to form a current loop. The current detection unit generates a square DC voltage signal representing the current flow in the current loop. The low-pass filter transfers the square DC voltage signal to an average voltage signal. The current control unit compares the average voltage signal to a reference voltage. According to the result of the comparing, the current control unit outputs a corresponding control signal to the voltage-controlled transistor to maintain the current flow in the current loop as a constant. Therefore, the brightness of the LED unit can be uniform.

摘要翻译： LED驱动电路包括连接到AC电力的整流单元，LED单元，压控晶体管，电流检测单元，低通滤波器和电流控制单元。 整流单元，LED单元，压控晶体管和电流检测单元串联连接形成电流回路。 电流检测单元产生表示电流回路中的电流的平方直流电压信号。 低通滤波器将平方直流电压信号传送到平均电压信号。 电流控制单元将平均电压信号与参考电压进行比较。 根据比较的结果，电流控制单元将相应的控制信号输出到压控晶体管，以将电流环中的电流维持为常数。 因此，LED单元的亮度可以均匀。

公开(公告)号：US11573265B2

公开(公告)日：2023-02-07

申请号：US16810855

申请日：2020-03-06

申请人： Min-Hung Chang ,  Ching-Lin Lee ,  Chin-Yuan Chang ,  Cheng-Hung Pan ,  Mao-Sheng Liu ,  Tzu-Tu Chao

发明人： Min-Hung Chang ,  Ching-Lin Lee ,  Chin-Yuan Chang ,  Cheng-Hung Pan ,  Mao-Sheng Liu ,  Tzu-Tu Chao

IPC分类号： G01R31/28

摘要： Herein disclosed are a method and a test probe for testing an electrical component. The electrical component comprises at least a first electrode and a second electrode. The method comprises the following steps: covering the first electrode with a first conducting flexible layer; driving a first electrode contact to electrically connect a first end of the first electrode contact with the first electrode via the first conducting flexible layer; covering the second electrode with a second conducting flexible layer; and driving a second electrode contact to electrically connect a second end of the second electrode contact with the second electrode via the second conducting flexible layer. The first conducting flexible layer is an anisotropic conductive film.

公开(公告)号：US08779668B2

公开(公告)日：2014-07-15

申请号：US13565771

申请日：2012-08-02

申请人： Cheng-Hung Pan

发明人： Cheng-Hung Pan

IPC分类号： H05B37/02

CPC分类号： H05B37/0218 ,  Y02B20/46

摘要： An AC LED lamp adaptive to ambient luminance has a lamp shell, an LED lamp board, an LED driving circuit and a luminance sensor. The LED lamp board, the LED driving circuit and the luminance sensor are mounted inside the lamp shell and are electrically connected to each other. The luminance sensor is mounted on the LED lamp board, is capable of sensing light emitted from the LED lamp board. Multiple LED elements on the LED lamp board are alternately driven to turn on and turn off and a luminance signal is sensed by the luminance sensor while the LED elements are driven to turn off. As the luminance signal contains an ambient luminance only, accurate ambient luminance for the lamp can be therefore acquired.

摘要翻译： 适用于环境亮度的AC LED灯具有灯壳，LED灯板，LED驱动电路和亮度传感器。 LED灯板，LED驱动电路和亮度传感器安装在灯壳内部并彼此电连接。 亮度传感器安装在LED灯板上，能够感测从LED灯板发出的光。 在LED灯板上的多个LED元件被交替地驱动以导通和关闭，并且在LED元件被驱动关闭时由亮度传感器感测亮度信号。 由于亮度信号仅包含环境亮度，因此可以获得灯的准确的环境亮度。

公开(公告)号：US08773027B2

公开(公告)日：2014-07-08

申请号：US13614780

申请日：2012-09-13

申请人： Cheng-Hung Pan

发明人： Cheng-Hung Pan

IPC分类号： H05B37/00 ,  H05B37/02 ,  H05B33/08

CPC分类号： H05B33/089 ,  H05B33/0821

摘要： A current-shunting AC LED driving circuit has a rectification unit, an LED unit, a voltage-controlled transistor, a shunt resistor, a current detection unit and a steady current control unit. The LED unit and the rectification unit constitute a power loop and acquire a pulsed DC power through the rectification unit. The voltage-controlled transistor and the current detection unit are serially connected to the power loop. The steady current control unit acquires an average loop current through the current detection unit to control the voltage-controlled transistor so that the LED unit can stably emit light. The shunt resistor is parallelly connected to the voltage-controlled transistor to constitute a current-shunting path to shunt the loop current flowing through the voltage-controlled transistor so as to reduce the power withstood by the voltage-controlled transistor.

摘要翻译： 电流分流型交流LED驱动电路具有整流单元，LED单元，压控晶体管，分流电阻，电流检测单元和稳定电流控制单元。 LED单元和整流单元构成电源回路，并通过整流单元获取脉冲的直流电力。 电压控制晶体管和电流检测单元串联连接到电源回路。 稳定电流控制单元获取通过电流检测单元的平均环路电流，以控制压控晶体管，使得LED单元能够稳定地发光。 分流电阻并联连接到压控晶体管以构成电流分流路径，以分流流过压控晶体管的环路电流，以便降低由压控晶体管承受的功率。

公开(公告)号：US20130082617A1

公开(公告)日：2013-04-04

申请号：US13614780

申请日：2012-09-13

申请人： Cheng-Hung PAN

发明人： Cheng-Hung PAN

IPC分类号： H05B37/00

CPC分类号： H05B33/089 ,  H05B33/0821

摘要： A current-shunting AC LED driving circuit has a rectification unit, an LED unit, a voltage-controlled transistor, a shunt resistor, a current detection unit and a steady current control unit. The LED unit and the rectification unit constitute a power loop and acquire a pulsed DC power through the rectification unit. The voltage-controlled transistor and the current detection unit are serially connected to the power loop. The steady current control unit acquires an average loop current through the current detection unit to control the voltage-controlled transistor so that the LED unit can stably emit light. The shunt resistor is parallelly connected to the voltage-controlled transistor to constitute a current-shunting path to shunt the loop current flowing through the voltage-controlled transistor so as to reduce the power withstood by the voltage-controlled transistor.

摘要翻译： 电流分流型交流LED驱动电路具有整流单元，LED单元，压控晶体管，分流电阻，电流检测单元和稳定电流控制单元。 LED单元和整流单元构成电源回路，并通过整流单元获取脉冲的直流电力。 电压控制晶体管和电流检测单元串联连接到电源回路。 稳定电流控制单元获取通过电流检测单元的平均环路电流，以控制压控晶体管，使得LED单元能够稳定地发光。 分流电阻并联连接到压控晶体管以构成电流分流路径，以分流流过压控晶体管的环路电流，以便降低由压控晶体管承受的功率。

公开(公告)号：US20130043793A1

公开(公告)日：2013-02-21

申请号：US13564140

申请日：2012-08-01

申请人： Cheng-Hung PAN

发明人： Cheng-Hung PAN

IPC分类号： H05B37/02

CPC分类号： H05B33/089 ,  Y02B20/341

摘要： A lightning-proof AC LED driving device has a lightning detector breaker connected between a rectifier and an AC LED driver circuit. When lightning strikes, a high voltage enters the rectifier, and the anode and cathode of the rectifier are equipotential, making the lightning detection breaker automatically disconnect the AC LED driver circuit from the rectifier. This interrupts the connection between the rectifier and the AC LED driver circuit. Thus, the AC LED driving device has the lightning-proof function.

摘要翻译： 防雷型交流LED驱动装置，在整流器和交流LED驱动电路之间连接有雷电检测器断路器。 当雷击时，高压进入整流器，整流器的阳极和阴极均等电位，使得雷电检测断路器自动断开交流LED驱动电路与整流器的连接。 这将中断整流器和交流LED驱动电路之间的连接。 因此，AC LED驱动装置具有防雷功能。

公开(公告)号：US20200284834A1

公开(公告)日：2020-09-10

申请号：US16810855

申请日：2020-03-06

申请人： Min-Hung CHANG ,  Ching-Lin LEE ,  Chin-Yuan CHANG ,  Cheng-Hung PAN ,  Mao-Sheng LIU ,  Tzu-Tu CHAO

发明人： Min-Hung CHANG ,  Ching-Lin LEE ,  Chin-Yuan CHANG ,  Cheng-Hung PAN ,  Mao-Sheng LIU ,  Tzu-Tu CHAO

IPC分类号： G01R31/28

摘要： Herein disclosed are a method and a test probe for testing an electrical component. The electrical component comprises at least a first electrode and a second electrode. The method comprises the following steps: covering the first electrode with a first conducting flexible layer; driving a first electrode contact to electrically connect a first end of the first electrode contact with the first electrode via the first conducting flexible layer; covering the second electrode with a second conducting flexible layer; and driving a second electrode contact to electrically connect a second end of the second electrode contact with the second electrode via the second conducting flexible layer. The first conducting flexible layer is an anisotropic conductive film.

公开(公告)号：US09239742B2

公开(公告)日：2016-01-19

申请号：US13550223

申请日：2012-07-16

申请人： Hsin-Yi Liu ,  Chih-Chiang Kao ,  Cheng-Hung Pan ,  Chun-Tai Yen

发明人： Hsin-Yi Liu ,  Chih-Chiang Kao ,  Cheng-Hung Pan ,  Chun-Tai Yen

IPC分类号： G06F9/46 ,  G06F9/52 ,  G06F9/54 ,  G06F9/50

CPC分类号： G06F9/52 ,  G06F9/50 ,  G06F9/544

摘要： Embedded systems are provided, which includes a processing unit and a memory. The processing unit simultaneously executes first thread having a flag for performing a data acquisition operation and second thread for performing a data process and output operation for the acquired data in the data acquisition operation. The flag is used for indicating whether a state of the first thread is in an execution state or a sleep state. The memory which is coupled to the processing unit provides a shared buffer for the first and second threads. Before executing the second thread, the flag is checked to determine whether to execute the second thread, wherein the second thread is executed when the flag indicates the sleep state while execution of the second thread is suspended when the flag indicates the execution state.

摘要翻译： 提供了包括处理单元和存储器的嵌入式系统。 处理单元同时执行具有用于执行数据获取操作的标志的第一线程和用于在数据获取操作中对所获取的数据执行数据处理和输出操作的第二线程。 标志用于指示第一线程的状态是处于执行状态还是休眠状态。 耦合到处理单元的存储器为第一和第二线程提供共享缓冲器。 在执行第二线程之前，检查该标志以确定是否执行第二线程，其中当该标志指示执行状态时，当该标志指示休眠状态，同时第二线程的执行被暂停时，第二线程被执行。

公开(公告)号：US20130145372A1

公开(公告)日：2013-06-06

申请号：US13550223

申请日：2012-07-16

申请人： Hsin-Yi LIU ,  Chih-Chiang KAO ,  Cheng-Hung PAN ,  Chun-Tai YEN

发明人： Hsin-Yi LIU ,  Chih-Chiang KAO ,  Cheng-Hung PAN ,  Chun-Tai YEN

IPC分类号： G06F9/46 ,  G06F13/28

CPC分类号： G06F9/52 ,  G06F9/50 ,  G06F9/544

摘要： Embedded systems are provided, which includes a processing unit and a memory. The processing unit simultaneously executes first thread having a flag for performing a data acquisition operation and second thread for performing a data process and output operation for the acquired data in the data acquisition operation. The flag is used for indicating whether a state of the first thread is in an execution state or a sleep state. The memory which is coupled to the processing unit provides a shared buffer for the first and second threads. Before executing the second thread, the flag is checked to determine whether to execute the second thread, wherein the second thread is executed when the flag indicates the sleep state while execution of the second thread is suspended when the flag indicates the execution state.

摘要翻译： 提供了包括处理单元和存储器的嵌入式系统。 处理单元同时执行具有用于执行数据获取操作的标志的第一线程和用于在数据获取操作中对所获取的数据执行数据处理和输出操作的第二线程。 标志用于指示第一线程的状态是处于执行状态还是休眠状态。 耦合到处理单元的存储器为第一和第二线程提供共享缓冲器。 在执行第二线程之前，检查该标志以确定是否执行第二线程，其中当该标志指示执行状态时，当该标志指示休眠状态，同时第二线程的执行被暂停时，第二线程被执行。